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Old 07-27-2009, 01:59 PM
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first jeep 87 wrangler with 40"

I picked up a clean 1987 wrangler with 40" tires and a 396 in it with a turbo 400 tranny and a np231 tc.... but the axles appear to be stock (traded it for a 2002 gsxr 1000) what is my cheapest way to make this beast both trail and road worthy.. could i beef up the dana 30 front and 35 rear or would a axle swap be my best bet and what would be the axle type recomendations...

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Old 07-27-2009, 02:20 PM
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here are some picsClick image for larger version

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Old 07-27-2009, 02:26 PM   #3
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axle swap!!!!

If you run those tires with the stock axles you will be braking u-joints like crazy especially the 35.

You can either go 44/60 combo or 1 tons. That will be your best bet.
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Old 07-27-2009, 02:52 PM   #4
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Kmetz: That looks like a lot of fun! It's not the kind of vehicle you can drive quietly and pick your nose unnoticed, though is it?

I agree with Laxnyj18 - you can't expect much trouble free wheelin' with stock axles. With that engine and tranny you can really stomp on it, but with weak "ankles" you won't get too far.

This one belongs to a co-worker. It's got Dana 60's front and rear with custom axles from SolidAxle. Solid Axle Industries . It also has hydro-boost steering, which helps with those itty-bitty tires.

It also looks like you could modify those fender flares a bit - something seems a little off center.

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Old 07-27-2009, 02:58 PM   #5
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wow, thats a beast.. gonna be fun in the mud!!!
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Old 07-27-2009, 04:42 PM   #6
 
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no help from me. just want to say that is a sweet ride.
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Old 07-27-2009, 06:15 PM   #7
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Man Nice Jeep
Stay off the gas just like you did on that GSXR- lol

Bud I had a cj-5 with a 302 that would almost do wheelies
bet that has some horses

Axle swap 44s
What gearing do you want?
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Old 07-27-2009, 08:13 PM   #8
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i still the with d44s front and rear he is still going to be snaping axles.

Go with one tons. Its almost like a measure twice cut once thing.
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Old 07-27-2009, 08:28 PM   #9
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cool jeep you could go with full width axles however if you want to stick with stock width i would put a a somewhat billt 8.8 in the rear and a wagoneer 44 in the front i think that would hold up fine in the mud/street im not shore about the rocks. by the way are those tires grand prees or wild country mudder
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Old 07-27-2009, 09:19 PM   #10
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OK seriously that is one SWEET rig you got there... and I have no idea how you still have the axles on there and NOT destroyed with that power and such pewney Stock axles! do a swap asap
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Old 07-27-2009, 09:54 PM   #11
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you know you can get 40's with almost no lift

Genwright has the highmount tube fenders front and rear so you get the clearance without all the lift problems keeping your low center of gravity
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Old 07-27-2009, 10:14 PM   #12
 
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I'm still rated as NewB and not as mechanically inclined as others but even a dummy knows that is a sweet ass ride.
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Old 07-27-2009, 11:04 PM   #13
 
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sweeeeeeeeet i would like to take to in my lake
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Old 07-28-2009, 08:27 AM
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Thanks for all the info and props... I knew it was a project when i traded for it but could not let it go by with the potential it had. in my eyes i figured it was 2/3 complete.. I figured an axle swap was in order. will the np 231j tc still be viable with the one ton axles? what kind of vehicle would have the axles i would need so i can start my search of the bone yards? look at me not even a week into my first jeep and i'm talking axle swap.. God i love it (i think)!! Anyone who feels like giving more advice or recomendations feel free to post them for me.. i need the help and i will get some more pics up to show you what i'm dealing with underneath...
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Old 07-28-2009, 08:38 AM   #15
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awsome ride dont worry by week two u will be planing the next one ok so it depends what axel u want the 8.8 is under the explorer um dana 44 under most full sized Chevy's and the wagoneer and Dana 60's and bigger i think would be under anything 3/4 ton and up any one want to help out some more i dont know crap what went under the older fords
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Old 07-28-2009, 12:17 PM   #16
 
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a friend of my had a yj with 44" and dana 60's named the dozer. went any where you pointed it
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Old 07-28-2009, 01:14 PM   #17
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One of the magazines had a nice article on junkyard axles a month or two ago. But I can't remember which.

You can have problems with the TC matching - some of the axles will have the pumpkin on the wrong side, or just load from a different place, etc. I would guess that's one of the reasons a Full Size Jeep is a popular option.

But it's all too complicated for me. There are a bunch of guys around here that have built this already.

And it's summer time! Go drive!!
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Old 07-28-2009, 02:28 PM   #18
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Man ! Love the yellow! I am doing 60's front and rear with ram assist on the front. You can build hybrid 44's and would get you the same result if you had the 44 housings laying around. Mine has stock dana 44's and its broke right now. Those meats will hook something and break an axle or ring gear if you are not careful.
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Old 07-28-2009, 02:47 PM
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with the 40" tires and 396 i would think after doing some research 60's would be in order..better safe than sorry. anyone have any links or info on this swap to a yj..?
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Old 07-28-2009, 06:59 PM   #20
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what state u live in if you can get away with it just throw full with axles under it. you know any more about the engine other then its a 396
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Old 07-28-2009, 07:56 PM   #21
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I've been helping a buddy of mine with his axle swap. He was snapping axles left and right on his Dana 44's with 35s . . . both stock and a couple sets of Alloy USAs. Yes he drives like a maniac!!! Ended up buying an 80's era Ford F350 with a Sterling 70 in the rear and the D60 up front . . . yanked the axles and are putting them under the Jeep. It's a lot of work to say the least, but after parting out the old Ford and selling bits and peices off his old junk, he's not out nearly what I would have thought, but then again, that's just on the axles . . . there's a lot more he's still got to finish.
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Old 07-29-2009, 09:42 AM
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I'm in northeast ohio and i know the 396 and tranny was out of a 1970 chevelle at least that is what i was told it has a quadrajet carb and headers thats about all i know dude i got the jeep from did say the engine was worth about 2 grand as it sits now... i know its a gas hog 8-10 mpg if that... now i would hope to sell the stock axles also to help pay for the swap but i realize its gonna cost some money lots of planing and hard work to make this happen...
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Old 07-29-2009, 04:08 PM   #23
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look in to finding a junk 3/4 or 1 ton chevy you could use the t-case and both front and rear axles that would be the cheapest way
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Old 07-29-2009, 04:17 PM   #24
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Having run 60's front and rear myself.. let me shed my worthless info..lol

Look for a chevy 14 bolt rear axle.. and a front 60 from a ford.. You will need to keep the spring over axle setup. These axle's will be able to handle the tires. the NP231 (stock 87 had the NP 207 if I recall so check it twice) can live with the v8, however I would put a SYE kit in as well as check the chain to make sure it is tight. As for gears in the axle.. I would think 5.13's are around what you would need. Neat project.
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Old 07-29-2009, 04:25 PM   #25
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id lose the 231
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Old 07-29-2009, 07:38 PM   #26
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yeah i would upgrade the transfer to the one that has no chain and is all gear ( the number isnt coming to mind at the moment) but that way no chances but depends on the money available
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Old 07-29-2009, 08:16 PM   #27
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yeah i would upgrade the transfer to the one that has no chain and is all gear ( the number isnt coming to mind at the moment) but that way no chances but depends on the money available
np205
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Old 07-29-2009, 09:04 PM   #28
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ah thanks
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Old 07-30-2009, 07:31 AM
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thanks guys now i have some direction i'll check back in when i get something going.. and the jeep has no SOA
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Old 07-30-2009, 08:05 AM   #30
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thanks guys now i have some direction i'll check back in when i get something going.. and the jeep has no SOA

hm, it has the springs under the axles? Gee from the pic's it looked like they where above the axle....

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